TY  - RPRT
TI  - Is obstetric progress dependent on rigorous randomized controlled trials?
AU  - R C Goodlin
PY  - 1990
DO  - 10.1016/0002-9378(90)90076-j
UR  - https://pubmed.ncbi.nlm.nih.gov/2187362/
ID  - 2187362
ER  -